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Part Number

Part Number:
NSN:
NIIN:
Item Name:
ROLLER , LINEAR-ROTARY MOTION

Definition:

A CYLINDRICAL BODY HAVING A CENTRALLY LOCATED HOLE TO ACCOMMODATE A PIN OR SHAFT FOR ATTACHMENT TO A PUSH ROD GUIDE, YOKE, ROCKER ARM, TURNTABLE, OR RAIL. THE ITEM PROVIDES A ROLLING CONTACT WITH THE FACE OF A VALVE STEM, OR THE LOBES OF A CAM RING OR CAMSHAFT ON ENGINES, FUEL INJECTION PUMPS, LATCHES, TURNTABLES, PARALLEL BEARING SURFACES REQUIRING A ROLLER SUPPORT, AND THE LIKE. EXCLUDES BEARING, ROLLER, CYLINDRICAL; ROLLER, ELECTRICAL SWITCH; AND FRICTION BEARINGS. SEE ALSO CAM FOLLOWER, NEEDLE BEARING.

CAGE Information

Code Company
21335 TIMKEN AEROSPACE, INC TIMKEN AEROSPA

Federal Supply Class

Title

BEARINGS, PLAIN, UNMOUNTED

Inclusions:

INCLUDES SLEEVE BEARINGS; SPLIT BEARINGS; WASHER TYPE BEARINGS; JEWEL BEARINGS.

Exclusions:

EXCLUDES ANTIFRICTION BEARINGS (FSC 3110); MOUNTED BEARINGS (FSC 3130).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
BQWC CHAMFER/RADIUS OF OUTSIDE CORNER 0.021 IN. MIN,0.031 IN. MAX RADIUS
MATL MATERIAL STEEL,AMS 5630 AND PLASTIC,POLYTETRAFLUOROETHYLENE
STYL STYLE DESIGNATOR PLAIN
AETC METALLIC HARDNESS RATING 58.0 MINIMUM ROCKWELL C
BCXD BORE INSIDE DIAMETER 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
FEAT SPECIAL FEATURES PLASTIC LINER BONDED TO BORE AND FACES
ABKV OUTSIDE DIAMETER 0.999 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
AASG CASEHARDENING INDICATOR NOT CASEHARDENED
AQPL FACE WIDTH 0.995 INCHES MINIMUM AND 1.000 INCHES MAXIMUM

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